package com.itboye.sunsun.utils;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Sha1Md5Util {

	public static String SHA1(String decript) {
		try {
			MessageDigest digest = java.security.MessageDigest
					.getInstance("SHA-1");
			digest.update(decript.getBytes());
			byte messageDigest[] = digest.digest();
			// Create Hex String
			StringBuffer hexString = new StringBuffer();
			// 字节数组转换为 十六进制 数
			for (int i = 0; i < messageDigest.length; i++) {
				String shaHex = Integer.toHexString(messageDigest[i] & 0xFF);
				if (shaHex.length() < 2) {
					hexString.append(0);
				}
				hexString.append(shaHex);
			}
			return hexString.toString();

		} catch (NoSuchAlgorithmException e) {
			e.printStackTrace();
		}
		return "";
	}

//	public static String SHA(String decript) {
//		try {
//			MessageDigest digest = java.security.MessageDigest
//					.getInstance("SHA");
//			digest.update(decript.getBytes());
//			byte messageDigest[] = digest.digest();
//			// Create Hex String
//			StringBuffer hexString = new StringBuffer();
//			// 字节数组转换为 十六进制 数
//			for (int i = 0; i < messageDigest.length; i++) {
//				String shaHex = Integer.toHexString(messageDigest[i] & 0xFF);
//				if (shaHex.length() < 2) {
//					hexString.append(0);
//				}
//				hexString.append(shaHex);
//			}
//			return hexString.toString();
//
//		} catch (NoSuchAlgorithmException e) {
//			e.printStackTrace();
//		}
//		return "";
//	}

	public static String MD5(String input) {
		try {
			// 获得MD5摘要算法的 MessageDigest 对象
			MessageDigest mdInst = MessageDigest.getInstance("MD5");
			// 使用指定的字节更新摘要
			mdInst.update(input.getBytes());
			// 获得密文
			byte[] md = mdInst.digest();
			// 把密文转换成十六进制的字符串形式
			StringBuffer hexString = new StringBuffer();
			// 字节数组转换为 十六进制 数
			for (int i = 0; i < md.length; i++) {
				String shaHex = Integer.toHexString(md[i] & 0xFF);
				if (shaHex.length() < 2) {
					hexString.append(0);
				}
				hexString.append(shaHex);
			}
			return hexString.toString();
		} catch (NoSuchAlgorithmException e) {
			e.printStackTrace();
		}
		return "";
	}
}
